DPReview.com is closing April 10th - Find out more

EOS Ra: A great Full Frame Astrophotography mirrorless camera...

Started May 29, 2020 | User reviews thread
AstroDan Regular Member • Posts: 276
Re: EOS Ra: A great Full Frame Astrophotography mirrorless camera...
4

Hi Marco,

I'm not up to posting a full review yet, but I have a few results from clear weather we had this winter. Between the pandemic and the weather I haven't had much of an opportunity to capture data since April, but here are a few shots.

Orion Nebula Molecular Cloud Complex 1h45m Canon Ra at iso 400, Sigma 105 1.4 at f1.4

Messier 81 and 82 with surrounding integrated flux nebula 1h50m, Canon Ra iso 400, Sigma 105 f1.4

Pleiades to the California Nebula - 2 hours, Canon Ra iso 400, Sigma 105 at f1.4

Iris nebula and surrounding molecular cloud - 3h45m (though city lights due to COVID) Canon Ra iso 640, Sigma 105 at f1.4

These were all 'run and gun' shots captured with my little iOptron tracker. I will be using the Ra with a proper telescope once I can get back to my equipment. It isn't a perfect camera. There is still some banding in the shadows (particularly when you are pushing a star field around a galaxy), but the images stack and calibrate much better than those from my A7III. Overall, it loses single frame to single frame against my A7III (though it captures more Ha signal) and wins single frame against single frame versus my unmodified 6D. Once you start stacking the A7III starts to fall behind due to calibration issues from Sony messing with the raws, and the 6D shows the lack of Ha sensitivity (but still stacks nicely).

Cheers,

Dan

Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow